These wiring poblems are kicking me in the but.
And no I'm not plugging in a phone..........
is there a wire I'm messing and can I put honadata on my car even though I'm running a p72 if not what are my choices.

if your using an obd1 ecu, you need to make a wiring change. see the swap section, click 5th gen, see obd2 b18c into 5th gen civic. we have tons of info outside of the forums on this site. i suggest you take a look see